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From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Eric Long <eric.long@unisoc.com>,
	Baolin Wang <baolin.wang@linaro.org>,
	Vinod Koul <vkoul@kernel.org>, Sasha Levin <sashal@kernel.org>,
	dmaengine@vger.kernel.org
Subject: [PATCH AUTOSEL 5.1 08/59] dmaengine: sprd: Fix the incorrect start for 2-stage destination channels
Date: Fri, 14 Jun 2019 16:27:52 -0400
Message-ID: <20190614202843.26941-8-sashal@kernel.org> (raw)
In-Reply-To: <20190614202843.26941-1-sashal@kernel.org>

From: Eric Long <eric.long@unisoc.com>

[ Upstream commit 3d626a97f0303e9c30d063434b749de3f0f91fb5 ]

The 2-stage destination channel will be triggered by source channel
automatically, which means we should not trigger it by software request.

Signed-off-by: Eric Long <eric.long@unisoc.com>
Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/dma/sprd-dma.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/dma/sprd-dma.c b/drivers/dma/sprd-dma.c
index 431e289d59a5..0f92e60529d1 100644
--- a/drivers/dma/sprd-dma.c
+++ b/drivers/dma/sprd-dma.c
@@ -510,7 +510,9 @@ static void sprd_dma_start(struct sprd_dma_chn *schan)
 	sprd_dma_set_uid(schan);
 	sprd_dma_enable_chn(schan);
 
-	if (schan->dev_id == SPRD_DMA_SOFTWARE_UID)
+	if (schan->dev_id == SPRD_DMA_SOFTWARE_UID &&
+	    schan->chn_mode != SPRD_DMA_DST_CHN0 &&
+	    schan->chn_mode != SPRD_DMA_DST_CHN1)
 		sprd_dma_soft_request(schan);
 }
 
-- 
2.20.1


  parent reply index

Thread overview: 45+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-06-14 20:27 [PATCH AUTOSEL 5.1 01/59] lkdtm/usercopy: Moves the KERNEL_DS test to non-canonical Sasha Levin
2019-06-14 20:27 ` [PATCH AUTOSEL 5.1 02/59] ARC: fix build warnings Sasha Levin
2019-06-14 20:27 ` [PATCH AUTOSEL 5.1 03/59] dmaengine: jz4780: Fix transfers being ACKed too soon Sasha Levin
2019-06-14 20:27 ` [PATCH AUTOSEL 5.1 04/59] dmaengine: dw-axi-dmac: fix null dereference when pointer first is null Sasha Levin
2019-06-14 20:27 ` [PATCH AUTOSEL 5.1 05/59] dmaengine: mediatek-cqdma: sleeping in atomic context Sasha Levin
2019-06-14 20:27 ` [PATCH AUTOSEL 5.1 06/59] dmaengine: sprd: Fix the possible crash when getting descriptor status Sasha Levin
2019-06-14 20:27 ` [PATCH AUTOSEL 5.1 07/59] dmaengine: sprd: Add validation of current descriptor in irq handler Sasha Levin
2019-06-14 20:27 ` Sasha Levin [this message]
2019-06-14 20:27 ` [PATCH AUTOSEL 5.1 09/59] dmaengine: sprd: Fix block length overflow Sasha Levin
2019-06-14 20:27 ` [PATCH AUTOSEL 5.1 10/59] dmaengine: sprd: Fix the right place to configure 2-stage transfer Sasha Levin
2019-06-14 20:27 ` [PATCH AUTOSEL 5.1 11/59] ARC: [plat-hsdk]: Add missing multicast filter bins number to GMAC node Sasha Levin
2019-06-14 20:27 ` [PATCH AUTOSEL 5.1 12/59] ARC: [plat-hsdk]: Add missing FIFO size entry in " Sasha Levin
2019-06-14 20:27 ` [PATCH AUTOSEL 5.1 13/59] MIPS: mark ginvt() as __always_inline Sasha Levin
2019-06-14 20:27 ` [PATCH AUTOSEL 5.1 14/59] fpga: stratix10-soc: fix use-after-free on s10_init() Sasha Levin
2019-06-14 20:27 ` [PATCH AUTOSEL 5.1 15/59] fpga: dfl: afu: Pass the correct device to dma_mapping_error() Sasha Levin
2019-06-14 20:28 ` [PATCH AUTOSEL 5.1 16/59] fpga: dfl: Add lockdep classes for pdata->lock Sasha Levin
2019-06-15  5:47   ` Greg Kroah-Hartman
2019-06-15 22:41     ` Sasha Levin
2019-06-16  7:09       ` Greg Kroah-Hartman
2019-06-14 20:28 ` [PATCH AUTOSEL 5.1 17/59] fpga: dfl: expand minor range when registering chrdev region Sasha Levin
2019-06-15  5:48   ` Greg Kroah-Hartman
2019-06-23 19:26     ` Sasha Levin
2019-06-14 20:28 ` [PATCH AUTOSEL 5.1 18/59] parport: Fix mem leak in parport_register_dev_model Sasha Levin
2019-06-14 20:28 ` [PATCH AUTOSEL 5.1 19/59] parisc: Fix compiler warnings in float emulation code Sasha Levin
2019-06-14 20:28 ` [PATCH AUTOSEL 5.1 20/59] habanalabs: fix bug in checking huge page optimization Sasha Levin
2019-06-14 20:28 ` [PATCH AUTOSEL 5.1 21/59] IB/rdmavt: Fix alloc_qpn() WARN_ON() Sasha Levin
2019-06-14 20:28 ` [PATCH AUTOSEL 5.1 22/59] IB/hfi1: Insure freeze_work work_struct is canceled on shutdown Sasha Levin
2019-06-14 20:28 ` [PATCH AUTOSEL 5.1 23/59] IB/{qib, hfi1, rdmavt}: Correct ibv_devinfo max_mr value Sasha Levin
2019-06-14 20:28 ` [PATCH AUTOSEL 5.1 24/59] IB/hfi1: Validate page aligned for a given virtual address Sasha Levin
2019-06-14 20:28 ` [PATCH AUTOSEL 5.1 25/59] MIPS: uprobes: remove set but not used variable 'epc' Sasha Levin
2019-06-14 20:28 ` [PATCH AUTOSEL 5.1 26/59] crypto: hmac - fix memory leak in hmac_init_tfm() Sasha Levin
2019-06-14 20:28 ` [PATCH AUTOSEL 5.1 27/59] xtensa: Fix section mismatch between memblock_reserve and mem_reserve Sasha Levin
2019-06-14 20:28 ` [PATCH AUTOSEL 5.1 28/59] kselftest/cgroup: fix unexpected testing failure on test_memcontrol Sasha Levin
2019-06-14 20:28 ` [PATCH AUTOSEL 5.1 29/59] kselftest/cgroup: fix unexpected testing failure on test_core Sasha Levin
2019-06-14 20:28 ` [PATCH AUTOSEL 5.1 30/59] kselftest/cgroup: fix incorrect test_core skip Sasha Levin
2019-06-14 20:28 ` [PATCH AUTOSEL 5.1 31/59] userfaultfd: selftest: fix compiler warning Sasha Levin
2019-06-14 20:28 ` [PATCH AUTOSEL 5.1 32/59] selftests: vm: install test_vmalloc.sh for run_vmtests Sasha Levin
2019-06-14 20:28 ` [PATCH AUTOSEL 5.1 33/59] nds32: Avoid IEX status being incorrectly modified Sasha Levin
2019-06-14 20:28 ` [PATCH AUTOSEL 5.1 34/59] net: dsa: mv88e6xxx: avoid error message on remove from VLAN 0 Sasha Levin
2019-06-14 20:28 ` [PATCH AUTOSEL 5.1 35/59] net: hns: Fix loopback test failed at copper ports Sasha Levin
2019-06-14 20:28 ` [PATCH AUTOSEL 5.1 36/59] mdesc: fix a missing-check bug in get_vdev_port_node_info() Sasha Levin
2019-06-14 20:28 ` [PATCH AUTOSEL 5.1 37/59] sparc: perf: fix updated event period in response to PERF_EVENT_IOC_PERIOD Sasha Levin
2019-06-14 20:28 ` [PATCH AUTOSEL 5.1 38/59] net: ethernet: mediatek: Use hw_feature to judge if HWLRO is supported Sasha Levin
2019-06-14 20:28 ` [PATCH AUTOSEL 5.1 39/59] net: ethernet: mediatek: Use NET_IP_ALIGN to judge if HW RX_2BYTE_OFFSET is enabled Sasha Levin
2019-06-14 20:28 ` [PATCH AUTOSEL 5.1 40/59] selftests: set sysctl bc_forwarding properly in router_broadcast.sh Sasha Levin

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